Momentum water-elevator



(No Model.)

J. M. ALLEN & A. J. WELGKER.

MOMENTUM WATER ELEVATOR.

Patented Aug. 28, 1894.

Attesz: M 9 (314/1 Invenlorus: J mes Mj llcn bottom by a pipe 3*,

UNITED STATES PATENT OFFICE.

JAMES M. ALLEN AND ARMAND J. WELCKER, OF ST. LOUIS, MISSOURI.

-MOMENTUM WATER-ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 525,305, dated August28,1894. Application filed August 22,1893- Serial No. 483,772. (Nomodel.)

To all whom it may concern:

Be it known that We, JAMES M. ALLEN and ARMAND J. WELOKER, Louis, in theState of Missouri, have'invented a certain new and Improved MomentumWater-Elevator, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawing, formingpart of this specification.

The object of this invention is to set up increased momentum in adescending column of water by an exhaust produced by a positive powerfrom a suitable motor, and to cause the said momentum to be expended inthe elevation of a smaller body of water, to a greater height, ashereinafter'described.

The accompanying drawing is an elevation, partly in section, of anapparatus embodying our invention.

1 represents an elevated tank, supplied by a constant inflow, as at 2.

3 is a descending pipe, communicating at with a pump cylinder 4, inwhich works a piston 5, the piston rod 6 of which has a lost motionconnection by means of a slide 7, and slot8, with a rod 9, operated by asteam engine piston or other suitable motor. As the character of thisprime motor is unimportant, none is shown.

The slide 7 connects by its supporting lever arm 10, with a rod 11, tocontrol the reciprocating movement of the prime motor, as for examplethrough an ordinary slide valve.

The pump piston 5 has ports guarded by check valves 5, for the purposeof allowing the free passage of water therethrough in the return strokeof the piston.

The delivery end of the pump cylinder 4. communicates with a port ordischarge pipe 12, which may be a waste pipe, if the supply of water beabundant, or if a motor rod 9 of sufficient power be used, may becarried up,

' as in the present illustration, so as to return the water from thepump cylinder to the tank 1. The effective discharge of water is througha valve chamber 13, provided with check valves 14, 14. to preventbackward flow, communicating at top with an air chamber 15, forming acushion to equalize the flow, and with a discharge pipe 16, which iscarried to any height to which water is to be raised.

The operation of the apparatus is as follows: The pump piston beingmoved by the both of the city of St.

motor rod 9, in the direction indicated by the arrow, will exhaust waterfrom the lower end of the descending pipe 3, thus setting up anincreased momentumin the water descending through the pipe 3, andforcing the water which is in front of the pump piston 5 up the pipe 12.When the pump piston 5 reaches the termination of its efiective stroke,the check valves 5 therein will be prevented from opening by contactwith the cylinder head, and hence the motion of the water behind thepiston is suddenly arrested in this direction, causing the momentum tobe exerted in forcing water through the valve chamber 13, and dischargepipe 16. The lost motion of the motor rod 9, afforded by the slot 8 inwhich the slide 7, carried by said motor rod, works, afiords time forthe operation of this momentum force in driving water up the deliverypipe 16. The continued backward movement of the motor rod 9, after theslide 7 reaches the end of the slot 8, carries the pump piston 5 back tothe receiving end of the cylinder 4, the check valves 5 opening freelyto permit the passage of water through the piston. The effective strokeis then repeated by the forward movement of the motor rod 9 in thedirection of the arrow, and thus the operation proceeds continuously.The lost motion between the motor rod and the pump piston is illustratedin dotted lines, and by a detail View, showing the opposite side.

We claim as our invention- In a momentum water elevator, the combinationof the water supply, the descending pipe 3 leading from the watersupply, the chamber 13 provided with a valve 14 and delivery pipe 16,the pipe 3 connecting the descending pipe 3 with the chamber 13, thepump 4 5 provided with the pump piston 6, connected to the chamber 13and descending pipe 3,21. motor-rod 9 for actuating the pump, connectedwith the pump piston 6, by a slide and slot connection 7 8, to permitlost motion between the motor and the pump piston, causing a rest in-thepump piston during the momentum stroke of the ram, as explained.

JAMES M. ALLEN. ARMAND J. WELCKER. In presence of- OOTAVIUS KNIGHT,ALBERT M. EBERSOLE.

